PROBLEM TO BE SOLVED: To provide an underpants-type absorbent article which presents an appearance of outer clothes and allows the disposal of only an absorbent body in changing the absorbent article.SOLUTION: An underpants-type absorbent article 1 includes: an outside cover 2 having an annular waist band part 2A which is located around a waist of a wearer in a worn state and has elasticity in a circumferential direction and an absorbent body 3 located in a crotch of the wearer in a worn state. The outside cover 2 has a non-elastic extending part 2B that extends downward from a lower end of the annular waist band part 2A. The outside cover 2 and the absorbent body 3 are attachable to and detachable from each other. The outside cover 2 has a lower end edge 2b that is extended downward beyond a lowermost part 3 of the absorbent body 3.COPYRIGHT: (C)2014,JPO&INPIT【課題】アウターの衣料の外観を呈し、かつ吸収性物品の交換時には該吸収性本体のみを廃棄できるパンツ型吸収性物品を提供すること。【解決手段】パンツ型吸収性物品1は、着用状態において着用者の腰回りに位置し、かつ周方向に弾性を有する環状ウエストバンド部2Aを有する外側カバー2と、着用状態において着用者の股下に位置する吸収性本体3とを備える。外側カバー2は、環状ウエストバンド部2Aの下端から下方に延出する非弾性延出部2Bを有する。外側カバー2と吸収性本体3とは着脱可能になっている。外側カバー2はその下端縁2bが、吸収性本体3の最下部3’よりも下方に延出した状態となる。【選択図】図1